Busan Himchan Hospital proves the effectiveness of partial replacement of robotic artificial joints...Pain reduction, function improvement, and satisfaction improvement
Mar 25, 2025
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Partial replacement of knee artificial joints is a treatment that replaces only damaged areas that cause pain with artificial joints. Because you preserve your healthy tissues as much as possible, recovery is faster, and the movement of bending and stretching your knees is much more natural. In particular, since the area that causes pain is cut and replaced with an artificial joint, the effect of relieving pain after surgery is great, and the rehabilitation period can be accelerated because it can walk early.
Despite its many advantages, partial replacement surgery has not been performed universally in Korea due to the high difficulty of surgery. This is because it is difficult to secure visibility due to the small incision site during surgery, making it difficult to balance the insertion position, angle, and ligament of the artificial joint. However, in recent years, the limitations are being supplemented through robotic surgery. This is because robot technology has enabled more precise and safe surgery while maintaining the advantages of existing surgical methods.
◇Robot surgery reduces pain and improves function...Increase patient satisfaction
According to a survey of 30 patients who underwent partial replacement surgery and general partial replacement surgery using Mako robots, robot surgery showed better results in pain reduction, function improvement, and patient satisfaction than general surgery.
First, as a result of the Visual Analog Scale (VAS) survey, robotic surgery patients decreased from an average of 7.51 points before surgery to an average of 2.85 points after surgery, and general surgery patients decreased from an average of 8.66 points before surgery to an average of 3.06 points after surgery. The pain score after robotic surgery was 0.21 points lower than that of general surgery. The pain evaluation scale selects the intensity of pain felt by the patient between 0 and 10, which means that the closer to 10, the stronger the intensity of pain.
In the Knee Society score (KSS), which evaluates joint function, robot surgery averaged 152.1 points and general surgery averaged 143 points, showing higher improvement in robot surgery, and satisfaction with robot surgery averaged 4.14 points and general surgery averaged 3.8 points, showing higher patient satisfaction in robot surgery.
The operation time of robotic surgery was also shorter than that of general surgery. The average operation time was reduced by about 6 minutes to 75.33 minutes for general surgery and 69.28 minutes for robotic surgery. This is interpreted as an increase in the proficiency of doctors due to the accumulated experience of robotic surgery. The reduction in surgical time of robotic surgery suggests that surgery can be performed more efficiently while performing precise cutting. If the operation time is shortened, it can reduce the amount of bleeding while also reducing the time the affected part comes into contact with the air, thereby reducing postoperative complications or side effects.
Director Kim Jung-ho (Orthopedic Surgeon) of Busan Himchan Hospital Joint Center said "In the case of general artificial joint partial replacement surgery, the surgeon must check the alignment and balance of the knees with the naked eye and repeat fine adjustments, and the robot can guide the optimal cutting range and insertion angle based on pre-planned data to reduce unnecessary trial and error."As the precision of surgery increases, cutting and artificial joint insertion can be performed faster and more accurately."
◇Robot surgery increases surgical accuracy and minimizes bleeding
The biggest advantage of robotic surgery is that it can increase surgical accuracy and minimize bleeding. Artificial joints can be inserted in the optimal position according to the shape of the bone, and errors can be reduced by preventing mistakes that may occur during surgery through careful virtual planning. In addition, the cutting range is calculated accurately before surgery, and during surgery, if the robot arm is out of the set cutting range, the robot stops automatically through 'haptic' technology, thereby minimizing damage to normal tissue. As a result, the amount of bleeding can be reduced, and complications and side effects can be naturally reduced.
Kim Tae-kyun (Orthopedic Surgeon) at Himchan Hospital in Busan, who is leading the artificial joint surgery in the region by introducing the Mako robot system in September 2020, said "The results of this study confirmed that partial replacement of robotic joints is more effective in relieving pain and improving function than conventional surgical methods, and also contributes to shortening surgery time."Busan Himchan Hospital will continue to strive to provide more advanced medical technology through continuous research and clinical application "
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This article was translated by Naver AI translator.
